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Post by todddoyka on Oct 18, 2016 11:28:15 GMT -7
i know this is a dumb question but i have to ask.
how much fps do you gain going from a revolver to a rifle? i know that fps is not set in stone, but a "guesstimate" should be "close enuff for gubberment werk."
i'm going to buy a 500 linebaugh in my tc encore with a 23-25" barrel(MGM barrels). i have found ballistics for a revolver but not a rifle(fps). i think that 1300fps+/- should be about right for shooting a whitetail/black bear at 100-125 yards. i haven't found out which yet but it can be a 450gr kieth swc, 510gr lfn pb or a 525gr fn gc and the alloy is lyman #2 or water quench ww. the powders i have are trail boss, unique, titegroup and 2400.
thank you!!
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Post by Bullshop on Oct 19, 2016 14:21:49 GMT -7
I have never done a direct comparison of any center fire cartridge between being fired in a sealed breach and a revolver but I have made the comparison with rimfires. I made the comparison with the 22 LR and the 22 mag. The results were as follows.
22 LR
revolver ------- rifle
900 fps ------- 1330 fps
22 mag
1300 fps------- 2000 fps
Now thinking on it a bit I did develop a load for the 44 mag to be used in both rifle, a Marlin 1894 44 mag and revolver 5" Ruger Red hawk. The results were,
310gn Lee
revolver------- rifle
1300 fps------- 1700 fps
There ya go
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Post by todddoyka on Oct 20, 2016 8:44:43 GMT -7
what sort of bullet would you go with? i like the 510gr lfn (i can not find powder charges) but the 450gr swc looks great too( i have everything but titegroup).
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Post by Bullshop on Oct 20, 2016 9:59:10 GMT -7
My experience with the 500 Linebaugh is limited. For a short time I had a custom conversion on a Ruger Bisley model with 5" barrel. My gun had a removable brake but the difference between with and without the brake was so acute that there was not enough sight adjustment to allow zeroing for both.
I also found that to stay within the sight adjustment range only loads nearing top end performance were acceptable. Light loads were not an option with this gun if it were to stay within the sight adjustment range. For this reason this gun was just too much fun for me so we parted company.
While I had the gun I had a custom mold made for it. The bullet design is a 510gn WFN-GC. The bullet design worked out very well but I just didn't want a revolver that I couldn't use reduced loads in. This is the same bullet that I now use in my Win 1886 in 50 Ak. As in the revolver the bullet design is a winner and my 1886 Win is pretty much a one bullet rifle with that bullet. It now has a mid size bull moose and a tremendously huge bull bison to its credit and in both cases performed admirably.
If going with top end type loads in the 500 because of the pressure it works at I would stay with a gas checked design bullet. For more moderate loads from about 50 to 75% of max pressure plain base bullets should be OK.
In a revolver with limited sight adjustment the amount of sight adjustment may dictate the allowable bullet weight and load pressure as it did with my gun.
If you run out of down adjustment a lighter weight bullet with higher velocity and correspondingly shorter barrel dwell time may be required. On the same token if you run out of upward sight adjustment a heavier slower bullet weight with correspondingly longer barrel dwell time may be the solution.
As you can see from this that there will be a happy medium of bullet weight and load density to stay within the sight adjustment range making the revolver of limited use and the reason I no longer have one.
In the wisdom that comes with age I decided that I didn't really need that much power in a revolver although it was very kool and fun to play with. I went back to a standard Ruger SBH in 44 mag for my carry gun in bear country. After working as a caribou guide and having to stop a bull caribou with my Ruger Bisley 45 Colt ( what I had with ) and pushing a 300gn bullet with a muzzle velocity of 1000 fps lengthwise through a bull caribou from the rear and out the chest I decided I needed nothing more and so now carry a 45 Colt in a Ruger Bisley.
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Post by todddoyka on Oct 21, 2016 12:08:39 GMT -7
i was worried about can i use a gas check or not from my soon to rifle(500 L). top end revolver boolits go around 1200-1300fps(with lilgun or h1120) while "plinker"(i don't know what else to call them) go roughly 800-900fps(unique, titegroup) and midrange is around 1000fps(2400). i don't want to use lilgun or h110/win296 from a rifle, but i "think" i can use unique, titegroup and even 2400 to do the "magical" 1300+/-fps. if the powder does indeed do 1300+/-fps, then it is possible to do a 3" group at a 100 yards(open sights). and it would be "sooo cool" to have one!  i know it will probably be a 100-125 yard rifle, but thats ok. i have been thinking and i'll probably try the 450gr swc or a 450gr fn gc. i want to use a rifle for the 500 L because i'm having trouble using my ruger sbh in 44 mag. since i am disabled(right arm don't werk) i am trying to shoot the sbh(using 44sp) at 50 yards. i can do 3- 3 1/2" groups at 20-25yards(off hand), but when i go a bit further(30yards+) i have a problem hitting the target. now i know its just me, hitting all over the place, not hitting it low to the left or high to the right. my eyes are better than all right, 20/20 in the right and 20/15 in the left(i shoot leftie), i've had them checked like 6 months ago. i "guess" its because while i try to focus on the front sight, i focus on where its supposed to be. i'm trying to focus on too much instead of focusing on the front sight. i'm going to try a reflex sight(just put the dot where its supposed to go). i've found a guy that does do a sbh, weigand mini mount. i'll have to see how it goes. www.jackweigand.com/<wbr>Ruger-Revolver-Mini-Mount.html |
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Post by Bullshop on Oct 21, 2016 12:56:01 GMT -7
To put the power of a 50 cal in prospective I once shot a very nice mule deer buck with a 50-90 Sharps. The load was burning 90gn Goex FG powder with a 600gn paper patch bullet. The mulie ran down a draw that was chocked with Juniper brush and came up and out the opposite side from where he went in. I had cocked the big hammer on the 1874 Sharps when the deer went out of sight headed into the Juniper brush fully expecting to see him re appear on the other side maybe 100 yards or so distant. He did re appear but stopped so that his neck and shoulder were behind a Juniper tree about 8" in diameter. I had been standing and holding the rifle in an aiming position since he ran down hill into the brush and now my arms were getting tired. I was shooting a simple blade front sight with a rear Laurence type barrel mounted sight with slider. With confidence I held on a point on the Juniper tree that would align with the vital area of the lower chest on the deer. At the shot I saw large shards of Juniper flying all around the deer as he dropped in his tracks. The big 600gn soft bullet penetrated the tree and did a good job of making kindle of it and still had plenty of steam to cleanly dispatch the 4x4 mule deer buck. If I am remembering correctly my load was getting close to 1200 fps mv.
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Post by missionary on Oct 21, 2016 16:51:06 GMT -7
Greetings
Presently am shooting a 50 Alaskan. 51 grains of 4198 is yielding about 1750 fps with a 525 gr gc bullet from a 26 inch barrel. I expect it would go through any critter walking on this side of our globe.
Have done some testing with 41 mag, 414 Supermag and 45 Colt comparing velocities from 8 inch Dan Wesson revolvers to Marlin carbines JES Reboring did. Generally I expect about 300-350 fps gain in velocity using powders like H110 or 296 with "heavy for caliber" cast bullets with gas checks. I do not shoot jacketed. When you start shooting powders like Unique or faster you may actually loose velocity as the powder gets consumed much to fast for a barrel over 10 inches. 2400 seems to still give a bit more velocity but I do not expect much over 100-150 fps.
Generally I do not shoot "light for caliber" cast in my rifles or revolvers. I just move down in caliber.
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Post by Bullshop on Oct 22, 2016 13:07:13 GMT -7
The large bull bison shot with my 50 AK with the 510gn bullet at 1750 MV did catch the bullet. It was found under the hide on the off side of the entry.
The local butcher shop put him at about 2200 pounds live weight. He was huge. He had to be culled because he was so big he was causing damage to fences and young cows. My friend and neighbor runs the butcher shop and he got the job of culling that bull. He asked me for help with a gun and I brought two, a 375 Whelen loaded with my 370gn LFN and my 1886 50 AK with the above mentioned load. He liked the feel of the 1886 Win and went with that.
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i know it will probably be a 100-125 yard rifle, but thats ok. i have been thinking and i'll probably try the 450gr swc or a 450gr fn gc. 